Improvement in cotton-gins



` cation, to cotton-cleaning,

- waited tatw @anni ctjljiiw.'

T0 HIMSELF AND CHARLES W. MATTHEWS, OF SAME PLAGE.

Letters Patent No. 101,610, dated Apr-il 5, 1870.

IMPROVEMENT IN COTTON-GINS.

Thechedule referred to in these Letters Patent and making part oi the same.

To all whom it may concern:

Be it known that I, RICHARD R. GWATHMEY, of the cityof- Philadelphia, in the county of Philadelphia, in the Statel of Pennsylvania, have invented aA new and useful Improvement in Flues for Ootton- Ginning, Hulling, and Cleaning-Machines; and I do hereby declare that the following is a full and exact description thereof, reference being had tothe accompanying drawings making a part of this specification, in which The gure .represents the longitudinal sectional' elevation of a cottonginning or hnlling-machine, red lines showing theupper part of the iame and general disposition of the sundry part-s of said maf chines, blankl lines showingthe lower part of the frame or woodfwork, and parts,l of the machine in direct contact with the liuc, 'also represented in black lines.

The natureof my invention consists in the' appli` ginning, or hnlling-machines, especially of the style of my patent No. 72,846, of a due composed of several partitions, concave and plane, and so combined and constructed as to direct and discharge the lint at the front end of the machine, instead of at the back end, as has heretofore always been the case in all such cottonmachines.

To enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation.

A is the front end of the ginning-machine, as it,

is known that, in all cotton-ginning, &c., machines, the front end is where the cotton is dropped into the feeder, or thel end where the feeding devices are set.

D P 13ii P Pi Ii P" Piv are a seriesof flat inclined and concave partitions, fitting from one side to the other ofthe frame-work of .the machine, thereby forming a ilue designed to discharge the clean cotton or lint at the front A of the machine.

G and F are the brush cylinders which are generally found, from one to two or more, in all cottonmachines of this kind, and I have given them in the drawing simply to show that the mouth vor apertures M and M', in the body of the said flue', should always correspond with the back of said brush cylinders.

It is known that in cotton-cleaning, ginning or hulling-machiues, the vbrush cylinders are designed to give thelast cleaning to the cotton and rid it of all impurities that may have escaped the action of the cleaning devices of the machine, and also that the said brush cylinders, revolving very rapidly, send the cotton in all possible directions in the inside of `the machine, while the'impurities by their greater weight, fall at the bottom of the machine.

Now, when, as is customary, the lint is discharged at the back of the machine, a great deal of the lint is not driven ont, falls and accumulates, in remote corners, and parts of the machine where it is hard to reach it, and this, solely because the flue does and cannot extend or be made to extend further enough toward the front, or else it (the iiue) would intifere with the cleaning, ginning, or hulling devices, and therefore it has no communication with the brush cylinders or whatever revolving fans 0r other like devices there may be at the front of the machine.

Whereas, by incasing the line by a series of partitions, as above described, andwhaving, in the body of the said iue, as many apertures as bru-sh c, linders; and havingr the egress or discharge mouth of the said iue toward the front of the machine, I thereby take advantage of every current of air thus created, andam sure that, from all parts of my machine, the list must be driven ont.

At lirst sight, on examination of the drawings in my patent No. 72,846, it might be objected that a ilne like the one I claim could operate as well, whether` its mouth or discharge aperture be at the back or front of the machine.

I will easily demonstrate that this is a mistake.

If the discharge mouth or direction of' my flue were toward the back of the machine, the apertures in the body of the tine corresponding with the front brush cylinder G, would correspond with theii'on-t of said cylinder, and also and unavoidably with part of the hnlling, cleaning, or ginning devices of the machine in front of the -brush cylinder, and the current of air created by brush cylinder G and the machinery in its neighborhood woulddrivethe greater part of the cotton into the flue before it (the cotton) had been worked and finished bythe brushes, and when it is imperfectly cleansed.

It is, therefore, obvious that with a ueincascd as above described, for the whole length of the machine, it is necessary that the aperture inthe body ot' said tine should always correspond with the back ot' each brush cylinder or fan or like arrangements, and especially that the discharge mouth be at the front A of the machine.

I do not intend claiming broadly the mode-,of constructing fines of the above description; but their application to cotton-hulling, cleaning or ginning-machines is novel, and no machine of the kind has a i'lue discharging the lint at the front of the machine.

Therefore, having thus described my invention,

of cotton-cleaning, hulling or ginning-machines by means of a fiue constructed and operating in the manner and for the purpose above set forth-and described.

RICHARD R. GWATHMEY.

Witnesses:

LIONEL DEPINEUIL, J. H. BOWDEN. 

